Function demo_create_screen_window

cube/cube.c:3489–3546

}

static void demo_create_screen_window(struct demo *demo) {
    const char *idstr = APP_SHORT_NAME;
    int size[2];
    int usage = SCREEN_USAGE_VULKAN;
    int rc;

    rc = screen_create_context(&demo->screen_context, 0);
    if (rc) {
        printf("Cannot create QNX Screen context!\n");
        fflush(stdout);
        exit(EXIT_FAILURE);
    }
    rc = screen_create_window(&demo->screen_window, demo->screen_context);
    if (rc) {
        printf("Cannot create QNX Screen window!\n");
        fflush(stdout);
        exit(EXIT_FAILURE);
    }
    rc = screen_create_event(&demo->screen_event);
    if (rc) {
        printf("Cannot create QNX Screen event!\n");
        fflush(stdout);
        exit(EXIT_FAILURE);
    }

    /* Set window caption */
    screen_set_window_property_cv(demo->screen_window, SCREEN_PROPERTY_ID_STRING, strlen(idstr), idstr);

    /* Setup VULKAN usage flags */
    rc = screen_set_window_property_iv(demo->screen_window, SCREEN_PROPERTY_USAGE, &usage);
    if (rc) {
        printf("Cannot set SCREEN_USAGE_VULKAN flag!\n");
        fflush(stdout);
        exit(EXIT_FAILURE);
    }

    /* Setup window size */
    if ((demo->width == 0) || (demo->height == 0)) {
        /* Obtain automatically set window size provided by WM */
        rc = screen_get_window_property_iv(demo->screen_window, SCREEN_PROPERTY_SIZE, size);
        if (rc) {
            printf("Cannot obtain current window size!\n");
            fflush(stdout);
            exit(EXIT_FAILURE);
        }
        demo->width = size[0];
        demo->height = size[1];
    } else {
        size[0] = demo->width;
        size[1] = demo->height;
        rc = screen_set_window_property_iv(demo->screen_window, SCREEN_PROPERTY_SIZE, size);
        if (rc) {
            printf("Cannot set window size!\n");
            fflush(stdout);
            exit(EXIT_FAILURE);
        }
    }
}